Rolling-mill.



P. c. BIGGBRT, JR.

ROLLING MILL.

APPLICATION FILED MAY 13.11910.

Patented Jan. 3, 1911.

WITNESSES INVENTOH E?, c, @I SU WI" WL/E,

P. o. BIGGERT, JR.

Patented Jan. 3, 1911.

UNITED STATES PATENT OFFICE.

FLQRIENCE C. BIGGERT, JR., 0F PITTSBURG, PENNSYLVANIA, ASSIGNOR TO UNITED ENGINEERING & FOUNDRY COMPANY, OF PITTSBURG, PENNSYLVANIA, A CORPO- RATION OF PENNSYLVANIA.

ROLLING-MILL.

Specication of Letters Patent.

Patented Jan. 3, 1911.

Application mea May 13, 1910. serial No. 561,194.

Allegheny and Statefof Pennsylvania, have' invented a new and useful Improvement in Rollin '-Mills, of which the following is a full, cear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is an end view partly in vertical section and partly broken away of a rolling mill embodyln my invention; F igsl 2 and 3 l.aredetail vie spartly in end elevation and partly in vertical section showin a portion of the mill withthe parts in di erent ositions; and Fig. 4 is a erspective view o one of the supplemental iner's. A

My invention has relation to rolling mills, and moreparticularly to means for properly supporting and 'guidmg the upper vertically adjustable roll. Insome forms of mills,`par ticularly those mills in which the end rolls of the rolltables are journaled within the housings of the mill, there are difficulties in the wayl of extending the usual liners of the,v

housin windows down sufficiently .far to proper y guide tle movable upper roll. My invention provid s means of novel and simple character for overcoming this difficulty and also for facilitating the removal and insertion of the olls from the housings in changing the r lls `of the mill.

The nature of my invention will be best understood by reference to the drawin s, in which I have shown the preferred em odiment thereof and which will now be described, it being premised, however, that va rious chan s may be made without departing from t e spirit and scope of my invention, as denedin the appended claims.

In the drawings, the numeral 2 designates the housings of the mill, 3 the u per vertically adjustable roll, and 4 the' ower roll. Theupper roll is supported and journaled at its ends in carriers, provided with suitable bearings 5, and divided into upper and lower sections' 6 and 7, there being a slight clearance between the upper and lower sections, as

shown in Figs. 1V and 2.

8 designates the usual liners for the housy ing windows, and 9 are supplemental liners which are interposed laterally between the .liners 8 and the roll carriers. These suppletheir upper ends which engage the usual balancmg beams 11 and also have hooked portions 12, at their lower ends which have a ysupporting engagement with a lug or projection on the lower section 7 of the roll carrier. The supplemental liners 12 may also be formed with projections 12, (see Fi 4) which engage recesses in the roll carrier@ (as indicated in dotted lines in Fig. 2) to prevent endwise movement 0f said sect1on. Each supplemental. liner also has an inward projectiony 13, which normally projects into the clearance space between the upper and lower sections 6 and 7, and which is arranged upony upward movement of the .liners to have a lifting engagement with the upper section 6.

The liners 9 may be provided with suitable means to facilitate their handling, such as the threaded hole` 9, shown in the upper end thereof, in Fig. 4, which is designed to be engaged by a screw eye.

14 designates the usual holding-down screw for the upper roll, and 15 a power cylinder of any well known or suitable character for balancing the top roll, and which has its piston connected with the balancing beams 11, by means of the hangers 16.

The supplemental liners permit the upper roll to be moved down, so far as may be necessary, since they may be extended downwardly to any, desired distance while the distance to which the regular liners can be carried down is limited by the construction of the mill.

In removing the upiper roll from the housing, power is shut o from the cylinder 15, thereby allowing the balancing beams 11 to fall, and permitting the supplemental liners and the lower sections7 to move downwardly to the position shown inrFig. 2. In this position, the lower sections 7 can be readily removed. Power is then again admitted to the cylinder, and the screw 14 is actuated to raise the balancing beams, the supplemental liners, and the upper carrier sections 6 en tirely away from the rolls andinto the position shown in Fig. 3, the lugs 13 ofthe supplemental liners exerting a iftin action on the upper carrier sections 6. Tie roll can now be readily removed in the usual manner.

The advantages of my invention will be apparent to those skilled in the art, since it provides a simple and etlicient guide and support for the upper adjustable roll and also greatlyl facilitates the removal of the rolllin the manner described.

I claim:

1. In a rolling mill, the combination with a vertically adjustable upper roll and means for adjusting the same, of a divided carrier for said roll, and supplemental liners 4.engaging and supporting the lower section ofthe carrier and having means for exerting a lifting action on the upper section of the carrier, substantially as described.

2.- In a rolling mill, the combination with a vertically adjustable upper roll, means for adjusting the same and balancing beams, of a divided carrier for the roll, and supplemental liners having a supporting engagement with the balancing beamsand also having a supporting engagement with the lower section of the divided carrier, said liners also having means for exerting a lifting action on the upper section of the divided carrier, substantially as described.

3. In a rolling mill, the combination with a roll housing having the usual liners, a vertically movable roll, adjusting means therefor and balancing beams, of a divided roll carrier, supplementall liner members interposed between the roll carrier and the usual riers, and means whereb said members may be disengaged from sai lower sections and caused to exert a lifting action on the upper carrier section, substantially as described.

In testimony whereof, I have hereunto set my hand.

FLORENCE C. BIGGERT, JR.

Witnesses:

H. M. CORWIN, j GEO.' H. PARMELEE. 

